Quick-traverse bobbin for dyeing, washing, and like treatment



H. KRANTZ QUICK TRAVERSE BOBBIN FOR DYEING, WASHING, AND LIKE TREATMENT Filed March 30. 1926 Dec. 13, 1927.

I a MX M w e #6 .h a. m D

W n w no r v Patented Dec. 13,1927.

' traverse bobbins,

The dyeing, washing; et bobbins, known onthe market, as quick is rendered diflicultby the paper or pasteboard tubes on .whichlthe yarn is wound. In the dyeing ofjsuch bob- 111$ it' has therefore been tried 'to remove the. tubes from the bobbins manually or mechanically'-and. ,to replace them by tubes of another-material or of a small diameter or by elastic tubes. The paper tubes have,

for instance, been replaced by sheet metal tubes because the latter are more appropriatefor the-dyeing process. The paper tubes on which the yarn'was wound, have also been replaced by tubes of asmaller diameter for the purpos'eof of yarn of the bobbin so as to allow the liquor to easilypenetrate through the inner portion of the bobbin. Finally, the ordinary tubes have been replaced by elastic tubes in order to facilitate the compression of the quick-traverse bobbins when being dyed in bundles and to avoid the disadvantageous spaces between the bobbins dur-' ing such dyeing.

In all of these tests it has been made out that the removing of the tubes is not feasible with quick-traverse bobbins because of the long surface of contact and the small diameter of the tubes, the ordinary tubes having for instance a length of 145 millimeters and a diameter of 14 millimeters. In removing such tubes from the bobbins the inner yarn layers are deranged so that the re-insertion of the tubes after the dyeing is rendered impossible. With the view of overcoming this drawback it has been proposed to fix the yarn before the removal and re-insertion of the tubes by completely drying the yarn through the application of heat. However, this operation takes'considerable time and is not at all a safe means for preventing the derangement of the inner yarn layers on withdrawing and re-inserting the tubes. It has further. been tried to wind the yarn from the beginning on special tubes consisting of steel wire wound so as to form a cylinder. These special tubes have the disadvantage that they are very expensive and must remain in the yarn during the dyeing.

Now, the invention has for its object to provide a new method of preparing quicktraverse bobbins for the dyeing, washing, et cetera of the bobbins without tubes on cylindrical dye spindles in a circulating liquor, the method consisting in winding the cea.=-.ai.- .a

when the; tube in a circumferentially expanded?cond1t on;'slipping the yarn bobloosening-up the inner-layers am-ts; resins-state 'e f'vanable diameter bin from thetube onra dye spindle'ofsmaller diameter whenrthe tube is in its normal.con-' dition and .re-inserting the tube into the- ,tubeless bobbin after the dyeing when the tube is inacircumferentially contracted con- I dition The slipping of the quick-traverse bobbin on and off the resilient tube is eifected w1thout any danger of injuring the yarn.

As the tubes do not remain inthe bobbin during the dyeing or'like operation,- they maybe made of paper or pasteboard rolled or glued together.

In order to allow of the invention to be more regdily understood it will now be described with reference to the accompanying drawin in which:

.Fig. is a side view of the resilient bobbin tube 1n its normal condition;

. Fig. I is an end view of the tube accordmg to Fig. I;

Fig. II is a side view of the tube in its expanded condition seated on a winding-frame isoplndle and carrying a quick-traverse bob- Fig. II is an end view of the tube and spindle according to'Fig. II;

Fig. III is a view similar to Fig. II illustrating the slipping of the bobbin from the tube onto a hollow cylindrical dye spindle, the tube being in its normal condition;

Flg. III is anend-view of the tube-and dye spindle according to Fig. 111';

F1g. IV is a fragmentary view illustratin the rcmsertion of the tube in its contracte condition into the bobbin after the dyeing or like treatment; and

Fig. IV is an end view of the tube and dye spindle in the position according to Fig.

The tube 1 consists of a strip of paper,

diameter of the existing winding-frame I spindles should be small,

for

drical dye spindle 4 without injuring the inner yarn windings. Figs. III and III show this 0 eration of slipping the bobbin during whic the dye spin le 4 is inserted by a short piece into one end of the tube 1 which is in its normal condition. In order to facilitate this slipping operation the dye spindle 4 may be provided with a detachable centering in.

After t e bobbin has been dyed, the tube 1 is contracted as shown in Figs. IV and IV and slightly inserted into one end of the dye spindle 4;, whereupon the dyed bobbin which is only loosely mounted on the spindle 4, may

be readily slipped from the latter on the contracted tube w ich has only a small diameter. When the tube 1 with the bobbin 3 on it is withdrawn from the spindle 4, it will snap into its normal condition and bear, against the yarn, so that the dyed bobbin may be sub: jected on the tube to the ordinary further treatments.

Having thus described my invention, what I claim as new and desire to secure by Letters-Patent, is

A tube for preparing quick-traverse-bobbins for dyeing, washing, and-similar treatment, comprislng a resilient tube-like element divided longitudinally with its divided edges overlapping in all extended and contracted relations of the tube, whereby the tube may be expanded to fit over the winding frame spindle to receive the bobbin, partially contracted to separate from the bobbin while at the same time carrying the bobbin onto the dye spindle and further contracted to fit within the dye spindle to ermit the bobbin to be moved again onto t e tube, the resilient tube in all positions of contraction and expansion maintaining its divided edges lapped to facilitate such expansion and contraction without interference of such edges.

In testimony whereof I have signed my name to this specification.

D3. HUBERT KRANTZ. 

